# arithmetic mean

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### noun Statistics.

the mean obtained by adding several quantities together and dividing the sum by the number of quantities: the arithmetic mean of 1, 5, 2, and 8 is 4.

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“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

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Improve Your WritingAlso called average.

## Origin of arithmetic mean

First recorded in 1790–1800

## Words nearby arithmetic mean

aristotype, arith., arithmancy, arithmetic, arithmetician, arithmetic mean, arithmetic progression, -arium, Arius, Ariz., Arizona

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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

## Example sentences from the Web for arithmetic mean

## British Dictionary definitions for arithmetic mean

arithmetic mean

### noun

an average value of a set of integers, terms, or quantities, expressed as their sum divided by their numberthe arithmetic mean of 3, 4, and 8 is 5 Often shortened to: mean Also called: average Compare geometric mean

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

## Medical definitions for arithmetic mean

arithmetic mean

[ ə-rĭth′mĭ-tĭk ]

### n.

The value obtained by calculating the sum of a set of quantities and then dividing that sum by the number of quantities in the set.average

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

## Scientific definitions for arithmetic mean

arithmetic mean

[ ăr′ĭth-mĕt′ĭk ]

The value obtained by dividing the sum of a set of quantities by the number of quantities in the set. For example, if there are three test scores 70, 83, and 90, the arithmetic mean of the scores is their sum (243) divided by the number of scores (3), or 81. See more at mean. Compare average median mode.

The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.